Briqueting-machine.



Patented Oct. 9,1917.

1 SHEETS-SHEET I vnullllla BRIQUETING MACHINE.

APPLICATION FILED FEB. i. I9H5.

1,242,704. Patented Oct. 9,1917.

C. KORTE.

BFHQUETING MACHINE. APPLICATION mm ma. 2. INS.

Patented Oct. 9, 19174 FSHIETSSHEET 3- C. KORTE.

BRIQUETING MACHINE. APPLICATION HLED FEB. 1. 19m

1 ,242,704. Patented Oct. 9, 191?.

c. KOBTE.

BMQUETING MACHINE.

APPLICATION FILED "58.1.1916.

1,242,704. Patented Oct. 9, 1917.

ISHEETS-SHEET T.

UNITED STAT PATENT OFFICE.

CHRISTIAN KOBTE, 0F LEEDS, ENGLAND, ASSIGNOR OF TWO-THIRDS TO CAMBELLSAND HUNTER LIMITED, OF LEEDS, ENGLAND.

BRIQUETING-MACHINE.

Specification of Letters Patent.

Patented Oct. 9, 1917.

Application filed February 1, 1916. Serial No. 75,511.

To all whom it may concern.

Be it known that I, Gmns'rmn Koarn, a subject of the King of GreatBritain, and resident of Leeds, in the county of York, England, haveinvented a ccrtainnew and useful Improvement in Briqueting-Machines, ofwhich the following description, having reference to the accompanyingsheets of drawings, is a specification.

My invention relates to the type or class of briqueting machines whereinmechanical devices are employed (for exerting the pressure upon thegranulated substances that are to be formed into briquets) inconjunction with hydraulic mechanism for relieving the pressure and moreespecially to those ma.- chines which are designed to be employed in theproduction of briquets from metal borings and the like. In this class ortype of machine it is essential that provision should be made forapplying equal pressure to the resultant briquet whether said briquet isa long one or a short one as is well known, and the object of my presentinvention is the production of devices which when the desired pressureis imparted to the briquet being produced, the pressing tools areimmediately relieved of the excessive pressure by the novel means I nowemploy, and yet in such a manner as to avoid shocks and jerky vibrationsirrespective of the length of the resultant briquet, while the samedevices are arranged in conjunction with driving mechanism which willgradually decrease in speed as the maximum or desired pressure isreached. r

In the accompanying drawings Figure 1 is a side elevation of a machineproduced in accordance with my invention.

Fig. 2 is a front elevation of the parts shown by Fig. 1 as seen in thedirection in dicated by the arrow a.

Fig. 3 is a plan of the parts shown by Figs. 1 and 2.

Fig. 4 is a longitudinal sectional elevation of parts shown by- Figs. 1and 2.

Fig. 5 is a sectional plan of parts shown by Fig. 1.

Fig. 6 is a sectional elevation drawn to an enlarged scale of certaindevices hereinafter described.

Fig. 7 is an elevation of the parts shown bv its connecting by Fig. 6 asseen in the direction indicated by the arrow 5.

Fig. 8 is a plan of parts shownby Fig. 6.

Figs. 9 and 10 are side elevation and plan respectively of drivingmechanism hereinafter described.

Similar letters and figures of reference refer to similar partsthroughout the several views.

A indicates the base upon which the upper parts B forming the frameworkof the machine, are mounted.

In the upper part of the framework B lateral openings 2 are formed oneach side so that arms 3 and 3" of a cylinder 3 may take into them aridbe guided thereby as they are moved in a vertical path hereinafterdescribed. Connected to these arms or to ears extending therefrom arethe connectingrods 4.. 4, which extend downward to be actuated by thecranks 5 and 5 formed on the crank shaft 6. This crank shaft 6 has fixedupon it the driving wheels 7 and 7 which gear with wheels 8 and 8 andmounted upon the cross shaft 9, while upon this cross shaft 9 a drivingwheel 10 is fixed to mesh with a pinion wheel 11 carried by the maindriving shaft 12, upon which the driving pulley 13 is fixed. Thus assaid pulley l3is rotated the shaft 6 will be rotated and'will cause thecranks 5, 5 to re ciprocate the cylinder 3 as it is guided by the slots2 in the framework B. Upon the other end of the shaft 12 is fixed abalance wheel 13. Formed centrally upon the same shaft'fi is anothercrank 14, see Fig. 4, which rod 15, engages with the sliding'block P6 sothat said sliding block is also made to reciprocate vertically by therotary motions of said crank shaft 6, thepositions of the cranks 5 and5" being opposite to the position of the crank 14 so that asthe cranks 5and 5 have the cylinder 3 in its lowest position, the crank 14 will.have the sliding block 16 in its highest position andvice versa.

Acting within the cylinder 3 is a pistonl'? the stem of which has fixedupon it at its lower end the pressing tool 18 which is arranged to takeinto one or other of the molds 19 formed in the rotary die plate 19 ashereinafter described.

Fixed upon the upper end of the sliding block 16 is another pressingtool 20, which as it is rcciprocated, is also made to enter one or otherof the molds 19 formed in the die plate 19. Thus as this latter pressingtool enters the mold in the die plate 19 by moving upward the pressingtool 18 will simultaneously enter the same mold by moving downward sothat the granulated substances contained by said mold will be pressedevenly between them from beneath as well as from above. 1

The piston 17 is forced in a downward direction by a spring 17* mountedwithin the cylinder 3, in order normally to keep the shoulder 17 thereonagainst an internal shoulder formed within the cylinder 3 as shown byFig. 4, while within this said cyl inder 3 and above the piston 7 aliquid (preferably oil) is placed so that as said cylinder 3 and itspiston descend to com press the contents of the mold said liquidwithstands the pressure within same.

Leading through the end of the cylinder 3 is an opening 3, within whicha double valve 3, 3 is mounted as shown by Fig. 4. These two valves arekept upon their seatings by a spring 3" acting against the washer 3fixed upon the shank of the inner smaller valve 3'.

Beyond the end of the cylinder 3 a cavity or vessel 21 is mounted sothat any oil or liquid escaping from the cylinder 3 through the opening3 and past the valves 3, 3 may enter said vessel 21.

Mounted above the valves 3', 3 is a lever 22 (pivoted at 22 to a slidingbearing 22 taking within bearings 22") the bearings 22 for which areforced in a downward direction by the recoil of a spring 22" mountedwithin the bearings 22", one end of said lever 22 having depending fromit a rod 22 while the other end is connected to a ram 23. This ram 23extends from acting within a cylinder 24 to which the pressure liquidfrom the cylinder 3 is conducted through a pipe 24 as shown by Figs. 4and 6, the same pipe also connecting through the duct 24' said pressureliquid to a pressure gage 25. The liquid as it passes from the cylinder3 through the tube 24 to the cylinder 24 has to pass beyond a valve 26which is opened by a lever 27 (in manner hereinafter described) when thedesired pressure in the cylinder 3 is reached and has been released ashereinafter described. The

ram 23 working within the cylinder 24 is forced in a downward directionunder the pressure of the two springs 24, 24, which are mounted upon thescrewed rods 24, 24 respectively upon which the wheel nuts 24",

24' are mounted, in order that by an elongated pinion 28 being rotatedby the hand WllBfBlflBSflld springs may be increased or dnnimshed inpressure to limit or regulate the maximum pressure that has to beexerted upon the briquets being produced.

When the mold 19 is brought beneath and above (5. eubetween) thepressing tools 18 and 20 the operatin cranks commence to move thesetools so t at they enter said mold. Indoing so the cylinder 3 is causedto descend and the upward pressure of one pressing tool and theresistance of the substances within the mold as the cylinder is drawn ina downward direction by its con necting rods 4 and ,4; causes the liquidwithin the cylinder 3 to be placed under pressure at which time it isforced along the tube 24 through the valve 26 to act upon the ram 23within the cylinder 24 in order to force said ram in a verticaldirection against the tension springs 24. 24". When this pressure hasreached a point where it overcomes said springs, it ooml'nei'lces tomove the ram 23 vertically thereb compressing the spring 22 within thebearings 22", at which time the end of said lever 22 which is coupled tothe rod 22 acts as a fulcrum for said lever 22 by reason of said rod 22pressing upon the stem of the valve 3. By the ram 23 continuing to risethe bearings 22 are forced to recede into the bearings 22, compressingthe spring 22 until the solid part 22 of the bearings 22 comes intocontact with the lower end of the fixed bearings 22", after which as theram 23 further rises then the central part 22 of the lever 22 becomesthe fixed fulcrum so that said lever 22 will then commence to force therod 22 in a downward direction.

As the rod 22 is then pressing upon the stem of the smaller valve 3 itscontinued descent forces and moves said valve from its seating andpermits the liquid within the cylinder 3 to escape into the vessel 21.In this manner the pressing tools and mechanism are relieved of theexcessive pressure when the proper limit has been reached as hadpreviously been adjusted for or regulated by the adjustments of thesprings 24 and 24. These valves-3 and 3 are of the duplex kindillustrated so that by the inner valve being small it will only relieveto a limited extent the extreme pressure described, thereby letting suchrelief action at this time recoil upon the several partsof mechanism;however, immediately saidrelief has been effected the rod 22 movesfarther under the recoil of the spring 22; which acts upon the lever 22(at which time the fulcrum of the lever 22 will be at its end which isconnected to the ram 23, and its continued motion will cause the stem ofthe valve 3 to carry the washer 3 so that this latter presses upon thestem of the valve 3?), thus opening the second valve 3 and therebyimmediately letting such of the liquid contents of the cylinder 3 escapeinto the vessel 21 as circumstances may require.

The adjustment of the springs 24 and 24 may be carried out so that anydesired pressure as indicated by the pressure gage 25 may be secured asthe requirements of the granulated materialsto be briqueted maynecessitate.

On the pressing operations being completed and the pressure on the litaid in the cylinder 3 being relieved the val ve 26 will be closed by therecoil o its spring. Thus the liquid within the cylinder 2% will beimprisoned therein and consequently the valves 3 and 3 will remain opento permit the liquid that had previously escaped from the cylinder 3 tothe vesml 21, to return to the said cylinder 3.

The cylinder 3 then commences to rise and in order to enable the liquidimprisoned in the cylinder 24 to escape therefrom, l mount a lever 27upon an extension 24 (which is fixed to thecylinder 24 while this latteris fixed to the cylinder-3 so as always to more with same) in suchmanner that the end 27 thereof may take beneath a bar 27 fixed to theframework B, by which means as the cylinder 3 continues to rise (afterthe operations stated) the end 27 o'f the lever '27 comes into contactwith the bar 27 and is thereby caused to oscillate upon its pivot sothat its other end 27 will engage with the sliding rod 27 and raise sameto lift the valve 26 from its seating thus openingthe passage 24 to thecylinder 3. During the time that the cylinder 3 is thus in its raisedposition the valve 26 is kept open by the lever 27 to enable the fluidto act as is hereinbefore described.

In order to reduce the speed at which the main crank shaft 6 revolves asthe pressure on the briquet increases, the driving belt from the drivingpulley 13 is arranged to take over a driving pulley l2 (which pulley 42is in the form of a box for containing any appropriate kind ofdifferential toothed gearing as for example that described in thespecification of my British Patent No. 18761 of 1912) fixed upon thesleeve 16" of a bevel wheel 46 which wheel and sleeve 46 and 46 runloosely upon the shaft 47. The shaft 47 is mounted to run loosely in thebearings C and D which may be supported on the floor of a building orupon the roof of same or in any suitable position. Upon the said shafti7 is mounted a. disk 48 (the same being arranged to slide thereon andto rotate therewith by means of a key way or feather) the periphery ofwhich is covered with leather or the like so that it may form suitablecontact with a. driving disk 49. This driving disk 49 is fixed upon theend of a shaft 50 carried by bearings or supports 51 so that at itsother end a driving pulley 52 may be fixed in order that any maindriving belt may transmit motion to said driving pulley 52 and thereforeto the disk =19. Fixed upon the same shaft 50 is a; bevel wheel 53 whichgears with the bevel wheel 46 hereinbefore referred to. The face of thedisk 49 is forced into contact with the periphery of the disk 48 bymeans of the spring 54. The disk 48 is moved longitudinally over theshaft -17 by the fork lever 1'3 which is actuated by a piston within thepressure cylinder it; said piston Within the cylinder 14 being connectedto the lever 43 by means of its rod 43 Pressure liquid from the cylinder3 is conducted to the cylinder 44 by means of the pipe 45, so that thepressure liquid in the cylinder 44 forces the lever 43 to move in thedirection indicated by the arrow 60, while the reverse motion of saidlever i3 is effected by the recoil ol' the spring 55. The actions ofthis apparatus are as follows;

At thc'connnencement of the pressing'operations, the disk 49' is rotatedby the man! driving belt rotating the pulley 52, and the disk 48 isrotated by said disk 49 at a com paratively slow speed. At the same timethe wheel. 53 is r tating the wheel 46 so that the speeds of thedifferential gear within the box 42 are approximately equal; thereforethe box 42 which forms the driving pulley transmits motion to themachine at a comparatively quick rate; On the pressure in creasing 1nthe cylinder 3 as the briquet becomes more and more compressed, saidpressure is transmitted to the piston within the cylinder it causingsame to move the lever 43 in the direction indicated by the arrow 60.Thus the speed of the disk id is gradually increased as its position ofcontact with the disk 49 reaches a position nearer the outer edge ofsaid disk i9. This increased speed of the disk 48 is transmitted to theshaft 47 and therefore the speed of the driving box 42 is graduallyreduced by the ratio effected through the differential gearing withinsaid box 42. Thus the pressure of the cylinder 3 is enabled to controlthe speed at which the crank 6 is actuated.

Although I have described the cylinder 3 as being used directly fortransmitting power to the pressing tools, the piston of such cylindertogether with its rapid relief devices may be used to act as means forsupporting the fulcrum of a lever arranged to carr Y the pressing toolin which case the crank mechanism would operate said lever, which. onthe desired pressure being reached, would have its fulcrum relieved bythe controlling prcssure cylinden in the manner hereinbefore fullydescribed.

As means for filling or feeding the granu lated substances to the molds19, a hopper 50 has propelling blades of any Well known formation,mounted to rotate Within it and these blades are rotated by gearingWheels 51, 51, 5]", chain Wheel 52. chain, and chain Wheel 52 the latterbeing fixed upon so as to rotate with the crank shaft 6 as shown by Fig.3. The hopper 50 has preferably three discharge nozzles 50, 50 and 50.

Such being the nature and object of my said invention, what I claim is:-

1. In a briqueting machine a rotary crank, means for rotating saidcrank, a cylinder reciprocated by said crank, a piston within saidcylinder, a pressing tool fixed to said piston, a valve within saidcylinder, means for operating said valve by a ram actuated by thepressure liquid in the cylinder, means for controlling the actions ofsaid ram, a receptacle for receiving the liquid escaping from thepressure cylinder and means for controlling the return of said liquid tothe pressure cylinder.

2. In a briqueting machine a rotary crank, means for rotating saidcrank, a cylinder reciprocated by said crank, a piston within saidcylinder, a pressing tool fixed to said piston, a valve within saidcylinder, means for operating said valve by a ram actuated by thepressure liquid in the cylinder, means for controlling the actions ofsaid ram, a

second pressing tool arranged to be operated by a supplementary crank onthe main crank shaft, a die plate for receiving the substances to bepressed and means for rotating said die plate between the pressingtools.

3. In a briqueting machine a rotary crank, means for rotating saidcrank, a cylinder reciprocated by said crank, a piston within saidcylinder, a pressing tool fixed to said piston, a valve Within saidcylinder, means for operating said valve by a ram actuated by thepressure liquid in the cylinder, a valve for controlling the actions ofsaid ram,

Copies 01 this patent may be obtained for five cents each, by addressingthe a device carried by the cylinder for controlling the movements ofsaid valve and a rotary plate or mold for receiving the substances to bebriqueted.

4. In a briqueting machine a rotary crank, a cylinder reciprocated bysaid crank, a piston within said cylinder, a spring for normally keepingsaid piston with its shoulder against an internal flange in saidcylinder, a valve mounted in the end of the cylinder so that theinternal pressure of said cylinder shall normally keep said valveclosed, a lever for acting upon said valve, said lever having itscentral fulcrum mounted upon a spring actuated bearing and means foractuating said lever.

5. In a briqueting machine a rotary crank, a cylinder actuated by saidrotary crank, a pressing tool actuated by the'piston of said cylinder,releasing valves operated by the pressure of the liquid in saidcylinder, means whereby said liquid under pressure is conducted so as toactuate driving mechanism to reduce the speed of said mechanism inaccordance with the increasing pressure of the liquid within thecylinder and means for reversing the actions of said actuatingmechanism.

6. In a briqueting machine, duplex pressing tools, a crank for operatingsaid pressing tools, a rotary die plate and means for causing same totravel intermittently be tween said pressing tools, gearing fortransmitting motion to said pressing tools and differential gearing inconjunction with friction driving disks for controlling the motion ofthe driving gear.

CHRISTIAN KORTE.

"Commissioner of Patents,

Washington, D. G.

